Cantilever crane for construction engineering machinery production

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a cantilever crane for constructional engineering machinery production, which mainly comprises a chassis, a stand column, a main beam arranged on the top of the chassis, an adjusting mechanism arranged on the right side of the stand column, and a rotating mechanism arranged on the outer side of the chassis and used for moving a device and facilitating installation. The adjusting device is arranged on one side of the stand column and used for adjusting the device to rotate. A threaded rod is driven to rotate by rotating a handle, a movable round frame is driven to move downwards while the threaded rod rotates, a plurality of universal wheels are driven to move downwards when the movable round frame moves downwards, the universal wheels support a fixing sleeve, then the base plate is supported, and the universal wheels are driven to roll by moving the base plate. And by reversely rotating the handle, the chassis and the bolt are accurately aligned for installation, convenience and rapidness are achieved, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a cantilever crane for the production of construction engineering machinery. Background Art

[0002] Cantilever cranes are widely used in the market. They are characterized by small space occupation, easy installation, and flexible operation. They are widely used in construction sites, mainly for carrying heavy objects, hoisting prefabricated components, installing steel structures, etc. Their high efficiency and large load capacity can significantly improve the progress and quality of construction, reduce labor intensity, and ensure construction safety.

[0003] However, when installing the cantilever crane, the chassis needs to be installed on the concrete piles on the ground by bolts first. Since the chassis is heavy, more manpower is needed to move the chassis and align it with the bolts during installation, which is laborious and inefficient. Utility Model Content

[0004] The utility model aims to provide a cantilever crane for production of construction engineering machinery to solve the problems raised by the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cantilever crane for construction engineering machinery production comprises: a chassis;

[0007] A column, arranged on the top of the chassis;

[0008] A main beam, arranged on the right side of the column;

[0009] An adjustment mechanism, arranged outside the chassis, for moving the device to facilitate installation;

[0010] The rotating mechanism is arranged on one side of the column and is used for adjusting the device to rotate.

[0011] Preferably, the adjustment mechanism comprises a fixing sleeve fixedly mounted on the outer wall of the chassis, a movable groove is provided on the bottom surface of the fixing sleeve, and a movable circular frame is slidably mounted on the inner wall of the movable groove.

[0012] Preferably, a plurality of universal wheels are fixedly mounted on the bottom surface of the movable circular frame, three fixed blocks are fixedly mounted on the inner wall of the movable groove, and the top surfaces of the three fixed blocks are rotatably connected to threaded rods via first bearing seats respectively.

[0013] Preferably, the upper ends of the three threaded rods are respectively threaded through the bottom surface of the movable circular frame and extend to the top of the movable circular frame. The upper ends of the three threaded rods are respectively rotated through the second bearing seat to penetrate the upper inner wall of the movable groove and extend to the top of the chassis. The upper ends of the three threaded rods are respectively fixed with handles.

[0014] Preferably, the rotating mechanism includes a fixed column fixedly installed on the top surface of the column, a fixed plate is rotatably installed on the outer wall of the upper end of the fixed column through a third bearing seat, an I-shaped steel is fixedly installed on the right side of the fixed plate, and the right side of the I-shaped steel is fixedly connected to the left side of the main beam.

[0015] Preferably, a pull plate is fixedly installed on the right side of the I-shaped steel, the other end of the pull plate is fixedly connected to the top surface of the main beam, a ring is fixedly installed on the outer wall of the column, a mounting plate is fixedly installed on the bottom surface of the I-shaped steel, and connecting plates are respectively fixedly installed on the front and rear sides of the I-shaped steel.

[0016] Preferably, a motor is fixedly mounted on the top surface of the front connecting plate, a rotating shaft is fixedly mounted on the output end of the motor, the lower end of the rotating shaft rotates through the top surface of the connecting plate and is rotatably connected to the top surface of the mounting plate via a third bearing seat, and a first roller is fixedly mounted on the outer wall of the rotating shaft.

[0017] Preferably, the top surface of the mounting plate is rotatably connected to a connecting shaft via a fourth bearing seat, the upper end of the connecting shaft is rotatably connected to the bottom surface of the connecting plate via a fifth bearing seat, a second roller is fixedly mounted on the outer wall of the connecting shaft, and the outer walls of the first and second rollers are rollingly connected to the outer wall of the circular ring.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model drives the threaded rod to rotate by turning the handle, and the rotation of the threaded rod drives the movable circular frame to move downward at the same time. When the movable circular frame moves downward, it drives a plurality of universal wheels to move downward. The universal wheels support the fixed sleeve and then support the chassis. By moving the chassis, the universal wheels are driven to roll, and the chassis can be moved to the position of installing the bolts conveniently and labor-savingly. By rotating the handle in the opposite direction, the chassis and the bolts can be accurately aligned for installation, which is convenient, quick and efficient.

[0020] By turning on the motor, the rotating shaft and the first roller are driven to rotate, and the first roller rolls on the outer wall of the ring, driving the connecting plate and the mounting plate to rotate, and then the connecting shaft and the second roller roll on the outer wall of the ring, the connecting plate drives the I-shaped steel to rotate, and the I-shaped steel drives the main beam to rotate, so that the hoisted object can be rotated, thereby increasing the hoisting range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is an exploded view of the three-dimensional structure of the utility model;

[0023] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 It is an exploded view of a partial three-dimensional structure of the utility model;

[0025] Figure 5 For the utility model Figure 4 Enlarged view of point B in the middle.

[0026] In the figure: 1. chassis; 101. column; 102. main beam; 2. adjustment mechanism; 201. fixed sleeve; 202. moving groove; 203. moving circular frame; 204. fixed block; 205. universal wheel; 206. threaded rod; 207. handle; 3. rotating mechanism; 301. fixed column; 302. fixed plate; 303. I-shaped steel; 304. pull plate; 305. ring; 306. mounting plate; 307. connecting plate; 308. motor; 309. rotating shaft; 310. first roller; 311. connecting shaft; 312. second roller. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] Example 1: Please refer to Figure 1-5 , the utility model provides a technical solution: a cantilever crane for construction engineering machinery production, comprising: a chassis 1, a column 101, arranged on the top of the chassis 1, and a main beam 102, arranged on the right side of the column 101;

[0030] The adjusting mechanism 2 is arranged on the outside of the chassis 1 and is used to move the device for easy installation. The adjusting mechanism 2 includes a fixed sleeve 201 fixedly installed on the outer wall of the chassis 1. A moving groove 202 is opened on the bottom surface of the fixed sleeve 201. A moving round frame 203 is slidably installed on the inner wall of the moving groove 202. A plurality of universal wheels 205 are fixedly installed on the bottom surface of the moving round frame 203. Three fixed blocks 204 are fixedly installed on the inner wall of the moving groove 202. The top surfaces of the three fixed blocks 204 are respectively rotatably connected with threaded rods 206 through the first bearing seat. The upper ends of the three threaded rods 206 are respectively threaded through the bottom surface of the moving round frame 203 and extend to the top of the moving round frame 203. The upper ends of the three threaded rods 206 are respectively rotatably penetrated through the inner wall of the upper end of the moving groove 202 through the second bearing seat and extend to the top of the chassis 1. The upper ends of the three threaded rods 206 are respectively fixedly installed with handles 207;

[0031] By rotating the handle 207, the threaded rod 206 is driven to rotate, and the rotation of the threaded rod 206 drives the movable frame 203 to move downward. When the movable frame 203 moves downward, it drives the plurality of universal wheels 205 to move downward. The universal wheels 205 support the fixed sleeve 201, and then support the chassis 1. By moving the chassis 1, the universal wheels 205 are driven to roll, and then the chassis 1 can be conveniently and labor-savingly moved to the position of installing the bolts. By rotating the handle 207 in the opposite direction, the chassis 1 and the bolts are accurately aligned for installation, which is convenient, fast, and improves efficiency.

[0032] Embodiment 2: Figure 1-5As shown, a cantilever crane for construction engineering machinery production disclosed in the third embodiment of the utility model has a structure basically the same as that in the second embodiment, except that a rotating mechanism 3 is arranged on one side of a column 101 and is used to adjust the device for rotation. The rotating mechanism 3 includes a fixed column 301 fixedly mounted on the top surface of the column 101, and a fixed plate 302 is rotatably mounted on the outer wall of the upper end of the fixed column 301 through a third bearing seat. An I-shaped steel 303 is fixedly mounted on the right side of the fixed plate 302, and the right side of the I-shaped steel 303 is fixedly connected to the left side of the main beam 102. A pull plate 304 is fixedly mounted on the right side of the I-shaped steel 303, and the other end of the pull plate 304 is fixedly connected to the top surface of the main beam 102. A ring 305 is fixedly mounted on the outer wall of the column 101, and a bottom of the I-shaped steel 303 is fixedly mounted. A mounting plate 306 is fixedly installed on the surface, connecting plates 307 are fixedly installed on the front and rear sides of the I-shaped steel 303 respectively, a motor 308 is fixedly installed on the top surface of the front connecting plate 307, a rotating shaft 309 is fixedly installed on the output end of the motor 308, the lower end of the rotating shaft 309 rotates through the third bearing seat to penetrate the top surface of the connecting plate 307 and is rotatably connected to the top surface of the mounting plate 306, a first roller 310 is fixedly installed on the outer wall of the rotating shaft 309, the top surface of the mounting plate 306 is rotatably connected to a connecting shaft 311 through a fourth bearing seat, the upper end of the connecting shaft 311 is rotatably connected to the bottom surface of the connecting plate 307 through a fifth bearing seat, a second roller 312 is fixedly installed on the outer wall of the connecting shaft 311, and the outer wall of the first roller 310 and the outer wall of the second roller 312 are rollingly connected to the outer wall of the ring 305;

[0033] By turning on the motor 308, the rotating shaft 309 and the first roller 310 are driven to rotate, and the first roller 310 rolls on the outer wall of the ring 305, driving the connecting plate 307 and the mounting plate 306 to rotate, and then the connecting shaft 311 and the second roller 312 roll on the outer wall of the ring 305, the connecting plate 307 drives the I-shaped steel 303 to rotate, and the I-shaped steel 303 drives the main beam 102 to rotate, and then the hoisted object can be rotated, thereby increasing the hoisting range.

[0034] The specific solution is as follows: turning the handle 207 drives the threaded rod 206 to rotate, and the threaded rod 206 rotates and drives the movable frame 203 to move downward. When the movable frame 203 moves downward, it drives multiple universal wheels 205 to move downward. The universal wheels 205 support the fixed sleeve 201, and then support the chassis 1. By moving the chassis 1, the universal wheels 205 are driven to roll, so that the chassis 1 can be moved to the position of the installation bolt conveniently and labor-savingly, and the chassis 1 and the bolts can be installed by rotating the handle 207 in the opposite direction. The bolts are installed with precise alignment, which is convenient and fast, and improves efficiency. The motor 308 is turned on to drive the rotating shaft 309 and the first roller 310 to rotate. The first roller 310 rolls on the outer wall of the ring 305, driving the connecting plate 307 and the mounting plate 306 to rotate, and then the connecting shaft 311 and the second roller 312 roll on the outer wall of the ring 305, the connecting plate 307 drives the I-shaped steel 303 to rotate, and the I-shaped steel 303 drives the main beam 102 to rotate, so that the hoisted object can be rotated, thereby increasing the range of hoisting.

[0035] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0036] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A cantilever crane for construction machinery production, characterized in that: include: Chassis (1); A column (101) is arranged on the top of the chassis (1); A main beam (102) is arranged on the right side of the column (101); An adjustment mechanism (2) is arranged outside the chassis (1) and is used to move the device to facilitate installation; The rotating mechanism (3) is arranged on one side of the column (101) and is used to adjust the device to rotate.

2. A cantilever crane for construction machinery production according to claim 1, characterized in that: The adjustment mechanism (2) comprises a fixed sleeve (201) fixedly mounted on the outer wall of the chassis (1); a movable groove (202) is provided on the bottom surface of the fixed sleeve (201); and a movable circular frame (203) is slidably mounted on the inner wall of the movable groove (202).

3. A cantilever crane for construction machinery production according to claim 2, characterized in that: A plurality of universal wheels (205) are fixedly mounted on the bottom surface of the movable circular frame (203), three fixed blocks (204) are fixedly mounted on the inner wall of the movable groove (202), and the top surfaces of the three fixed blocks (204) are rotatably connected to threaded rods (206) via first bearing seats.

4. A cantilever crane for construction machinery production according to claim 3, characterized in that: The upper ends of the three threaded rods (206) are respectively threadedly penetrated through the bottom surface of the movable circular frame (203) and extend to the top of the movable circular frame (203); the upper ends of the three threaded rods (206) are respectively rotated through the second bearing seat to penetrate the upper inner wall of the movable groove (202) and extend to the top of the chassis (1); and the upper ends of the three threaded rods (206) are respectively fixedly mounted with handles (207).

5. The cantilever crane for construction machinery production according to claim 1, characterized in that: The rotating mechanism (3) comprises a fixed column (301) fixedly mounted on the top surface of the column (101); a fixed plate (302) is rotatably mounted on the outer wall of the upper end of the fixed column (301) via a third bearing seat; an I-shaped steel (303) is fixedly mounted on the right side of the fixed plate (302); and the right side of the I-shaped steel (303) is fixedly connected to the left side of the main beam (102).

6. A cantilever crane for construction machinery production according to claim 5, characterized in that: A pull plate (304) is fixedly installed on the right side of the I-shaped steel (303), and the other end of the pull plate (304) is fixedly connected to the top surface of the main beam (102). A circular ring (305) is fixedly installed on the outer wall of the column (101). A mounting plate (306) is fixedly installed on the bottom surface of the I-shaped steel (303), and connecting plates (307) are respectively fixedly installed on the front and rear sides of the I-shaped steel (303).

7. A cantilever crane for construction machinery production according to claim 6, characterized in that: A motor (308) is fixedly mounted on the top surface of the front connecting plate (307), a rotating shaft (309) is fixedly mounted on the output end of the motor (308), the lower end of the rotating shaft (309) is rotatably penetrated through the top surface of the connecting plate (307) and is rotatably connected to the top surface of the mounting plate (306) via a third bearing seat, and a first roller (310) is fixedly mounted on the outer wall of the rotating shaft (309).

8. A cantilever crane for construction machinery production according to claim 7, characterized in that: The top surface of the mounting plate (306) is rotatably connected to a connecting shaft (311) via a fourth bearing seat; the upper end of the connecting shaft (311) is rotatably connected to the bottom surface of the connecting plate (307) via a fifth bearing seat; a second roller (312) is fixedly mounted on the outer wall of the connecting shaft (311); the outer wall of the first roller (310) and the outer wall of the second roller (312) are rollingly connected to the outer wall of the ring (305).

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